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April, 2007 SERVICE PROGRAM TABLES
5-91
3573
Target Poten:Vd Display Target Potential (VdDisplay)
Vd (read by the potential sensor) is the potential of dark areas of a drum before full
laser exposure. This SP displays the value of Vd used by processing control to
determine the target potential (Vd). The machine performs a calculation using
development gamma, Vk and the maximum coverage, and then uses the result to
lookup and retrieve the correct voltage from the Potential Table. This retrieved value
is used to raise the charge of the charge roller that charges the drums.
3574
Target Poten:Vl Display Target Potential (VlDisplay)
Vl (read by the potential sensor) is the potential of the exposed areas after full laser
exposure. This SP displays the value of Vl used by processing control to determine
the target potential (Vl). The machine performs a calculation using development
gamma, Vk and the maximum coverage, and then uses the result to lookup and
retrieve the correct voltage from the Potential Table. This retrieved value is used to
raise the input current of the laser diode.
001
K
002
M
003
C
004
Y
[-999~0/1 V]
3575
Dev DC Control
Display Value for Control of Development DC
Displays the deveopment bias that was referenced duing processing control and
used in the the previous jobs (Process control is set for Auto with SP3501 001.)
001
Std Spd:K
002
Std Spd:M
003
Std Spd:C
004
Std Spd:Y
[-800~0/1 V]
Std Spd (normal speed): 52 to 128 g/m
2
005
Low Spd:K
006
Low Spd:M
007
Low Spd:C
008
Low Spd:Y
[-800~0/1 V]
Low Spd (half-speed): Paper weight 128 o 256 g/m
2
3576
Chrg DC Control Display Value for Control of Charge Roller Bias DC
001
Std Spd:K
002
Std Spd:M
003
Std Spd:C
004
Std Spd:Y
[-999 to –200/1 V]
Std Spd (normal speed): 52 to 128 g/m
2
006
Low Spd:K
007
Low Spd:M
008
Low Spd:C
009
Low Spd:Y
[-999 to –200/1 V]
Low Spd (half-speed): Paper weight 128 o 256 g/m
2